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Ch. XI
ICD-10
Ch. XI
K21.9
K21.9
Gastro-oesophageal reflux disease without oesophagitis
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Coding guidance (WHO 2019)
Oesophageal reflux NOS
Sibling codes
K21
Gastro-oesophageal reflux disease
K21.0
Gastro-oesophageal reflux disease with oesophagitis
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